CN201407347Y - Shaft sealing device - Google Patents
Shaft sealing device Download PDFInfo
- Publication number
- CN201407347Y CN201407347Y CN200920037417XU CN200920037417U CN201407347Y CN 201407347 Y CN201407347 Y CN 201407347Y CN 200920037417X U CN200920037417X U CN 200920037417XU CN 200920037417 U CN200920037417 U CN 200920037417U CN 201407347 Y CN201407347 Y CN 201407347Y
- Authority
- CN
- China
- Prior art keywords
- disc
- end cover
- circular groove
- interior
- axis body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a shaft sealing device, which consists of an oil slinger extending out of a shaft body of a gearbox and a sealing end cover fixed on the gearbox body. The utility model ischaracterized in that the shaft body is provided with an inner oil slinger, an inner sealing end cover, an outer oil slinger and an outer sealing end cover in turn from inside to outside, wherein theinner and outer oil slinger are in interference fit to be arranged on the shaft body; the inner and outer sealing end covers are fixed on the gearbox body through bolts; the inner and outer sealing end covers are respectively provided with oil return holes communicated with an oil return channel on the gearbox body. The utility model has the advantages that: due to adopting a double labyrinth seal, the utility model can effectively solve the problem of gearbox body oil leakage and at the same time can prevent external impurity, water and dust from entering into the gearbox body; due to a certain clearance existing in the inner and outer oil slinger and the inner and outer sealing end covers, the utility model cannot be overheated when in use and has longer service life.
Description
Technical field
The utility model relates to a kind of seal arrangement, especially a kind of mechanical pair of labyrinth shaft sealer.
Background technique
Seal arrangement is in order to prevent the seepage of lubricant oil in the casing, to prevent that introduced contaminants, water and dust etc. from entering casing.Input shaft and output shaft end cap axis hole position are the places of the easiest generation oil impregnate, and the leakage of oil problem remains the subject matter that related domain is paid close attention to.Traditional speed reducer generally adopts the seal form of outside framework oil seal, and the drawback of this seal form often shows as: oil impregnate, heating, working life lack, dismounting difficulty during replacing.
Summary of the invention
The purpose of this utility model is: adopt oil impregnate, heating, the working life of outside framework oil seal existence short at input shaft in the gear-box and output shaft, dismantle problems such as difficulty during replacing, a kind of new shaft sealer is provided.
The purpose of this utility model is achieved in that a kind of shaft sealer, form by the disc on the axis body that stretches out gear-box, the end cover that is fixed on the gear case body, it is characterized in that: be provided with interior disc, interior end cover, outer disc and external sealed end cap on the axis body from the inside to the outside successively, wherein: inside and outside disc interference is located on the axis body, inside and outside end cover is by being bolted on the casing, be respectively equipped with on the inside and outside end cover with casing on the back oil road spill port of linking up.
In the utility model: be provided with the circular groove concentric on the interior disc with axis body, interior end cover be provided with interior disc on circular groove mate protruding weir; Outer disc is provided with the circular groove concentric with axis body, the external sealed end cap be provided with outer disc on circular groove mate protruding weir.
In the utility model: be provided with the together circular groove concentric with axis body on the interior disc, interior end cover is provided with that circular groove mates protruding weir on interior disc; Outer disc is provided with the twice circular groove concentric with axis body, the external sealed end cap be provided with the outer disc of twice on circular groove mate protruding weir.
In the utility model: described axis body is input shaft or the output shaft that stretches out gear case body.
Advantage of the present utility model is: because the utility model has adopted two labyrinth sealings, can effectively solve the casing leakage of oil, prevent that simultaneously extraneous impurity, water and dust etc. from entering casing; Because there are certain clearance in inside and outside disc and inside and outside sealed end, can be not overheated in the use, working life is longer.
Description of drawings
Fig. 1 is a kind of embodiment's internal structure schematic representation of the sealing that relates to of the utility model;
Among the figure: 1, external sealed end cap, 2, outer disc, 3, interior disc, 4, interior end cover, 5, casing, 6, axis body.
Embodiment
Accompanying drawing is nonrestrictive to disclose the structural representation of a kind of specific embodiment that the utility model relates to, and the utility model will be further described below in conjunction with accompanying drawing.
As seen from Figure 1, stretch out be provided with successively from the inside to the outside on the axis body 6 of casing 5 in disc 3, interior end cover 4, outer disc 2 and external sealed end cap 1, wherein: interior disc 3 and outer disc 2 interference are located on the axis body 6, interior end cover 4 and external sealed end cap 1 be by being bolted on the casing 6, be respectively equipped with on interior end cover 4 and the external sealed end cap 1 with casing 5 on the back oil road spill port of linking up.
In the present embodiment, interior disc 3 is provided with together the circular groove concentric with axis body 6, and interior end cover 4 is provided with that circular groove mates protruding weir on interior disc 3; Outer disc 2 is provided with the concentric circular groove of twice and axis body 6, external sealed end cap 1 be provided with the outer disc of twice on circular groove mate protruding weir.
The utility model goes for stretching out the input shaft or the output shaft of gear case body.
Claims (4)
1, a kind of shaft sealer, form by the disc on the axis body that stretches out gear-box, the end cover that is fixed on the gear case body, it is characterized in that: be provided with interior disc, interior end cover, outer disc and external sealed end cap on the axis body from the inside to the outside successively, wherein: inside and outside disc interference is located on the axis body, inside and outside end cover is by being bolted on the casing, be respectively equipped with on the inside and outside end cover with casing on the back oil road spill port of linking up.
2, shaft sealer according to claim 1 is characterized in that: interior disc is provided with the circular groove concentric with axis body, interior end cover be provided with interior disc on circular groove mate protruding weir; Outer disc is provided with the circular groove concentric with axis body, the external sealed end cap be provided with outer disc on circular groove mate protruding weir.
3, shaft sealer according to claim 2 is characterized in that: interior disc is provided with the together circular groove concentric with axis body, and interior end cover is provided with that circular groove mates protruding weir on interior disc; Outer disc is provided with the twice circular groove concentric with axis body, the external sealed end cap be provided with the outer disc of twice on circular groove mate protruding weir.
4, according to claim 1 or 2 or 3 described shaft sealers, it is characterized in that: described axis body is input shaft or the output shaft that stretches out gear case body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920037417XU CN201407347Y (en) | 2009-02-13 | 2009-02-13 | Shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920037417XU CN201407347Y (en) | 2009-02-13 | 2009-02-13 | Shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407347Y true CN201407347Y (en) | 2010-02-17 |
Family
ID=41678282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920037417XU Expired - Lifetime CN201407347Y (en) | 2009-02-13 | 2009-02-13 | Shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407347Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806350A (en) * | 2010-03-31 | 2010-08-18 | 南京高速齿轮制造有限公司 | Gear case used for rail traffic vehicle |
| CN104348289A (en) * | 2014-05-26 | 2015-02-11 | 山西太钢不锈钢股份有限公司 | Shaft seal method of end cover of generator and device thereof |
| CN105151113A (en) * | 2015-10-22 | 2015-12-16 | 芜湖恒隆汽车转向系统有限公司 | Gear and rack type power steering gear sealing structure |
| CN105292236A (en) * | 2015-10-22 | 2016-02-03 | 芜湖恒隆汽车转向系统有限公司 | Pinion-and-rack power steering gear sealing structure |
-
2009
- 2009-02-13 CN CN200920037417XU patent/CN201407347Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806350A (en) * | 2010-03-31 | 2010-08-18 | 南京高速齿轮制造有限公司 | Gear case used for rail traffic vehicle |
| CN104348289A (en) * | 2014-05-26 | 2015-02-11 | 山西太钢不锈钢股份有限公司 | Shaft seal method of end cover of generator and device thereof |
| CN105151113A (en) * | 2015-10-22 | 2015-12-16 | 芜湖恒隆汽车转向系统有限公司 | Gear and rack type power steering gear sealing structure |
| CN105292236A (en) * | 2015-10-22 | 2016-02-03 | 芜湖恒隆汽车转向系统有限公司 | Pinion-and-rack power steering gear sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161026 Address after: Nanjing City, Jiangsu province Mingrui road 211106 Jiangning economic and Technological Development Zone Patentee after: Nanjing Gao Jing rail transportation equipment Co., Ltd. Address before: 211100 Science Park Road 6, Jiangning District, Jiangsu, Nanjing Patentee before: Nanjing High Speed Gear Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100217 |
|
| CX01 | Expiry of patent term |